Classification
P - Language and Literature
1,960
F - General American History
1,908
M - Music
1,042
L - Education
617
C - Historical Sciences
607
B - Philosophy, Psychology, Religion
510
H - Social Science
504
S - Agriculture
470
D - World History
396
A - General Works
325
E - United States History
303
J - Political Science
277
Q - Science
276
R - Medicine
249
T - Technology
175
K - Law
121
Z - Library Science
102
N - Fine Arts
55
G - Geography, Anthropology, Recreation
31
U - Military Science
25